James Walker RotaBolt is a world leader in bolted joint technology and tension control. Its range of RotaBolt® tension control fasteners and joint integrity services are used wherever joints are subject to fatigue, vibration, pressure containment or structural slippage.

RotaBolts provide either finger-tip, visual or remote measurement of tension throughout the life of bolted joints, as tension across a bolted joint is critical to ensuring its reliability and safety. The accuracy of RotaBolt® tension monitoring far surpasses traditional tightening methods — such as hydraulic tensioners, flogging or torque systems — that can suffer severe control limitations resulting in unpredictable bolt tension and joint failure.